Shuttle type gear shifting operation mechanism

Abstract

The utility model belongs to the technical field of agricultural machinery gear shifting, and provides a shuttle type gear shifting operation mechanism which comprises an adjusting rod, a sleeve and a pull ring, a push-pull cable is arranged in the sleeve in a sliding mode, a first telescopic sleeve is arranged at one end of the sleeve, and a second telescopic sleeve is arranged at the other end of the sleeve. A notch is formed in the end, close to the first telescopic sleeve, of the sleeve, clamping grooves are formed in the two sides of the notch, the bottom of the adjusting rod is rotationally connected with the push-pull cable, clamping blocks are arranged on the two sides of the bottom of the adjusting rod, one end of the second telescopic sleeve is fixedly connected with the pull ring, and a plurality of fixing plates are arranged on the sleeve. The push-pull cable can be prevented from being exposed in the air, the influence of the external environment on the push-pull cable is reduced, and the conductivity of the push-pull cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery shifting, in particular to a shuttle type shifting operating mechanism. Background Art

[0002] In the shuttle shift system, push-pull cables are mostly used to transmit operating force, and the driver performs the shift operation by pulling or pushing the push-pull cables. However, since the push-pull cables extend to the bottom of the chassis of the agricultural machinery and are in an exposed state, they are easily affected by the external environment, resulting in reduced conductivity, which ultimately leads to unsmooth shuttle shifting.

[0003] There are many shuttle-type shift operating mechanisms in the prior art. For example, a shuttle-type shift operating mechanism for a tractor with publication number CN220204634U includes a seat, a seat bracket is provided at the bottom of the seat, a gearbox is provided at the bottom of the seat bracket, and an operating mechanism is provided on the side of the seat. The operating mechanism includes a shuttle-type shift support plate fixedly provided on the seat bracket, a support shaft is fixedly provided on the side of the shuttle-type shift support plate away from the seat, a vertical operating member is rotatably connected to the outside of the support shaft, and a horizontal shuttle-type shift gear lever is rotatably connected to the bottom of the operating member through an operating rocker arm, and a shift rocker arm is rotatably provided at one end of the shuttle-type shift gear lever away from the operating member, and the other end of the shift rocker arm is connected to the speed shaft of the gearbox. Its advantages are that it has a larger space, is more convenient to operate, has a high force transmission efficiency, and is more labor-saving. Its disadvantages are that the push-pull cable is easily affected by the external environment, resulting in reduced conductivity, which ultimately leads to unsmooth shuttle shifting.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a shuttle-type shift operating mechanism, which has a simple structure and is easy to use, can prevent the push-pull cable from being exposed to the air, reduce the influence of the push-pull cable on the external environment, and improve the conductivity of the push-pull cable.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a shuttle-type shift operating mechanism, including an adjusting rod, a sleeve and a pull ring, a push-pull cable is slidably provided inside the sleeve, a first telescopic sleeve is provided at one end of the sleeve, and a second telescopic sleeve is provided at the other end of the sleeve, a notch is provided at the end of the sleeve close to the first telescopic sleeve, and a plurality of slots are provided on both sides of the notch, the bottom of the adjusting rod is rotatably connected to the push-pull cable, blocks are provided on both sides of the bottom of the adjusting rod, one end of each of the blocks is slidably arranged with the adjusting rod, an elastic member is provided between the blocks, one end of the second telescopic sleeve is fixedly connected to the pull ring, a plurality of fixing plates are provided on the sleeve, and one side of the fixing plate is fixedly connected to the bottom of the agricultural machinery.

[0007] According to a shuttle-type shift operating mechanism of the utility model, one end of the push-pull cable is fixedly connected to the first telescopic sleeve, and the other end of the push-pull cable is arranged through the second telescopic sleeve.

[0008] According to a shuttle-type shift operating mechanism of the utility model, a fixed shaft is provided on the pull ring, the fixed shaft passes through the pull ring and is slidably arranged, one side of the fixed shaft is transmission-connected with an auxiliary plate, the bottom of the auxiliary plate is fixedly connected with a speed regulating rod, and the speed regulating rod is connected to the gearbox.

[0009] According to a shuttle-type shift operating mechanism of the utility model, the first telescopic sleeve is slidably connected to the sleeve, and the second telescopic sleeve is fixedly connected to the sleeve.

[0010] According to a shuttle-type shift operating mechanism of the utility model, one end of the push-pull cable passing through the second telescopic sleeve is provided with a thread, one side end of the pull ring is provided with a threaded hole, and the push-pull cable and one end of the pull ring are threadedly connected.

[0011] According to the shuttle-type shift operating mechanism of the utility model, threads are arranged on the sleeve near the fixing plate, thread sleeves are arranged on the threads, and the thread sleeves are threadedly connected to the sleeves.

[0012] The utility model aims to provide a shuttle-type shift operating mechanism, which can effectively prevent the push-pull cable from getting wet by setting a sleeve, and the adjusting rod drives the push-pull cable to slide inside the sleeve, and when the top of the adjusting rod moves backward, the push-pull cable moves in the direction of the pull ring, and the push-pull cable drives the pull ring to rotate, and the pull ring drives the fixed shaft to move, and the fixed shaft drives the auxiliary plate to move, and the auxiliary plate drives the speed regulating rod and the gearbox to cooperate to complete the speed regulation of the agricultural machinery, and the two ends of the push-pull cable cooperate with the first telescopic sleeve and the second telescopic sleeve respectively to ensure that the push-pull cable will not be exposed to the outside during the movement, and when the top of the adjusting rod moves forward, the push-pull cable moves away from the pull ring, thereby completing the deceleration, and the block on the adjusting rod cooperates with the slot on the sleeve to complete the constant speed, and the sleeve is made of hard material to ensure that the push-pull cable can slide back and forth smoothly, and the fixed plate is used to maintain the stability of the sleeve and prevent the sleeve from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the side structure;

[0015] Figure 3 yes Figure 1 A schematic diagram of the structure of part A;

[0016] In the figure: 1-adjusting rod, 101-elastic member, 102-block, 2-sleeve, 201-slot, 3-first telescopic sleeve, 4-second telescopic sleeve, 5-push-pull cable, 6-fixed plate, 61-threaded sleeve, 7-pull ring, 8-fixed shaft, 9-auxiliary plate, 10-speed regulating rod, 11-gearbox. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0019] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0020] See also Figure 1 to Figure 3 The utility model provides a shuttle-type shift operating mechanism, including an adjusting rod 1, a sleeve 2 and a pull ring 7, a push-pull cable 5 is slidably arranged inside the sleeve 2, a first telescopic sleeve 3 is arranged at one end of the sleeve 2, and a second telescopic sleeve 4 is arranged at the other end of the sleeve 2, a notch is arranged at one end of the sleeve 2 close to the first telescopic sleeve 3, and a plurality of card slots 201 are arranged on both sides of the notch, the bottom of the adjusting rod 1 is rotatably connected to the push-pull cable 5, blocks 102 are arranged on both sides of the bottom of the adjusting rod 1, one end of each of the blocks 102 is slidably arranged with the adjusting rod 1, an elastic member 101 is arranged between the blocks 102, one end of the second telescopic sleeve 4 is fixedly connected to the pull ring 7, a plurality of fixing plates 6 are arranged on the sleeve 2, and one side of the fixing plate 6 is fixedly connected to the bottom of the agricultural machinery.

[0021] See also Figure 1 to Figure 3In a further embodiment, the slot 201 and the block 102 cooperate, and the elastic member 101 between the blocks 102 is used to shrink the block 102. When the block 102 and the slot 201 cooperate, the elastic member 101 extends to a normal state. When the block 102 and the slot 201 are disengaged, the block 102 presses the elastic member 101 under the pressure of the edge of the slot 201, so that the elastic member 101 shrinks and then pulls back the block 102. When the adjusting rod 1 adjusts the push-pull cable 5, the block 102 and the slot 201 are used to maintain the stability of the adjusting rod 1 and also maintain a constant speed.

[0022] See also Figure 1 to Figure 3 In a further embodiment, one end of the push-pull cable 5 is fixedly connected to the first telescopic sleeve 3, and the other end of the push-pull cable 5 is arranged through the second telescopic sleeve 4. The first telescopic sleeve 3 and the second telescopic sleeve 4 are both used to cover the two ends of the push-pull cable 5 and cooperate with the movement of the push-pull cable 5.

[0023] See also Figure 1 to Figure 3 In a further embodiment, a fixed shaft 8 is provided on the pull ring 7, and the fixed shaft 8 is slidably arranged through the pull ring 7. One side of the fixed shaft 8 is transmission-connected with an auxiliary plate 9, and the bottom of the auxiliary plate 9 is fixedly connected with a speed regulating rod 10. The speed regulating rod 10 is connected to a gearbox 11. The fixed shaft 8 is used for the pull ring 7 to connect the auxiliary plate 9, and then drive the gearbox 11, that is, the push-pull cable 5 adjusts the gearbox 11.

[0024] See also Figure 1 to Figure 3 In a further embodiment, the first telescopic sleeve 3 is slidably connected to the sleeve 2, the second telescopic sleeve 4 is fixedly connected to the sleeve 2, the fixed end of the first telescopic sleeve 3 is fixedly connected to the sleeve 2, the telescopic end of the first telescopic sleeve 3 is fixedly connected to the push-pull cable 5, the fixed end of the second telescopic sleeve 4 is fixedly connected to the push-pull cable 5, and the telescopic end of the second telescopic sleeve 4 is fixedly connected to the sleeve 2.

[0025] See also Figure 1 to Figure 3 In a further embodiment, one end of the push-pull cable 5 passing through the second telescopic sleeve 4 is provided with a thread, and one side end of the pull ring 7 is provided with a threaded hole. The push-pull cable 5 and one end of the pull ring 7 are threadedly connected. The push-pull cable 5 is detachable to facilitate replacement and maintenance of the push-pull cable 5, and the push-pull cable 5 drives the pull ring 7 to move.

[0026] See also Figure 1 to Figure 3 In a further embodiment, the sleeve 2 is provided with threads near the fixing plate 6, and a threaded sleeve 61 is provided on the thread. The threaded sleeve 61 is threadedly connected to the sleeve 2, and the threaded sleeve 61 is used to cooperate with the sleeve 2 to further fix the sleeve 2.

[0027] When the top of the adjusting rod 1 moves forward, the push-pull cable 5 moves away from the pull ring 7, and the fixing plate 6 is used to keep the casing 2 stable and prevent the push-pull cable 5 from being exposed to the outside. When the top of the adjusting rod 1 moves forward, the push-pull cable 5 moves away from the pull ring 7, and the fixing plate 6 is used to keep the casing 2 stable and prevent the casing 2 from falling off.

[0028] The utility model provides a shuttle-type shift operating mechanism, which can effectively prevent the push-pull cable from getting wet by arranging a sleeve, and the fixing plate is used to maintain the stability of the sleeve to prevent the sleeve from falling off, and the adjustment rod and the pull ring are arranged to cooperate with the movement of the push-pull cable to complete the speed regulation, and the first telescopic sleeve and the second telescopic sleeve both block the two ends of the push-pull cable and cooperate with the movement of the push-pull cable, and the card block and the card slot are used to maintain the stability of the adjustment rod and also maintain a constant speed. In summary, the push-pull cable can be prevented from being exposed to the air, the influence of the external environment on the push-pull cable can be reduced, and the conductivity of the push-pull cable can be improved.

[0029] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A shuttle-type shift operating mechanism, characterized in that: It includes an adjusting rod, a sleeve and a pull ring, a push-pull cable is slidably provided inside the sleeve, a first telescopic sleeve is provided at one end of the sleeve, a second telescopic sleeve is provided at the other end of the sleeve, a notch is provided at one end of the sleeve close to the first telescopic sleeve, a plurality of slots are provided on both sides of the notch, the bottom of the adjusting rod is rotatably connected to the push-pull cable, blocks are provided on both sides of the bottom of the adjusting rod, one end of each block is slidably set with the adjusting rod, elastic parts are provided between the blocks, one end of the second telescopic sleeve is fixedly connected to the pull ring, a plurality of fixing plates are provided on the sleeve, and one side of the fixing plate is fixedly connected to the bottom of the agricultural machinery.

2. A shuttle-type shift operating mechanism according to claim 1, characterized in that: One end of the push-pull cable is fixedly connected to the first telescopic sleeve, and the other end of the push-pull cable is arranged through the second telescopic sleeve.

3. The shuttle-type shift operating mechanism according to claim 1, characterized in that: A fixed shaft is arranged on the pull ring, and the fixed shaft passes through the pull ring and is slidably arranged. One side of the fixed shaft is transmission-connected with an auxiliary plate, and the bottom of the auxiliary plate is fixedly connected with a speed regulating rod, and the speed regulating rod is connected to the gearbox.

4. The shuttle-type shift operating mechanism according to claim 1, characterized in that: The first telescopic sleeve is slidably connected to the sleeve, and the second telescopic sleeve is fixedly connected to the sleeve.

5. The shuttle-type shift operating mechanism according to claim 2, characterized in that: One end of the push-pull cable passing through the second telescopic sleeve is provided with a thread, one side end of the pull ring is provided with a threaded hole, and the push-pull cable and one end of the pull ring are threadedly connected.

6. The shuttle-type shift operating mechanism according to claim 1, characterized in that: The sleeve is provided with threads near the fixing plate, the threads are provided with thread sleeves, and the thread sleeves are threadedly connected with the sleeve.

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